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 Post subject: Possibility of a new FTIR microscope for diamonds
PostPosted: Sun Jan 13, 2013 7:21 pm 
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Hi All,
I have just come from the weekly chat and have had a very interesting conversation with Stephan who works on development for a microscope company in Belgium. (His user name is Phenouman) He is currently developing an FTIR microscope which will separate natural from synthetic, Tell the user whether the diamond is type 1 or 11 and a or b and also perhaps grade the colour. He is looking for input from people who deal in diamonds. (NOT ME) I'm hoping he will jump in and explain more to the diamond types on the forum.

Hopefully he will post here and people with diamond selling and identifying requirements will respond to his needs as to what you would all like in this sort of instrument.

He was most interested in Alberto and Mikkos gemmorama and I think he'd like to come up with something similar but for diamonds.

Hopefully he will explain it all better than than i can


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 Post subject: Re: Possibility of a new FTIR microscope for diamonds
PostPosted: Mon Jan 14, 2013 12:06 pm 
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Location: Rome, Italy
Hola Frank,

FTIR is a very useful if not mandatory tool for a serious gem lab and we would surely be interested about a project aiming to cost effective production of FTIR coupled microscope for gemology purposes. It is the fundamental basis of diamond analysis to give an answer about typing (nitrogen, boron & hydrogen content and forms in crystal lattice), to date, FTIR is the only one which can do the job. FTIR is even useful for spotting irradiation in diamonds.
It’s really a great instrument but, however, it does not separate natural diamond from synthetic or indicate treatments such HPHT. For conclusive analysis of all kind of synthetics and treatments all these are needed: FTIR spectrum, UV-VIS-NIR low temperature spectrum, Raman/PL low temperature spectrum, DiamondView or similar short wavelength UV fluorescence microscope imaging, and… surprise surprise… a gemological microscope :D 8)

Of course FTIR can be used for fast screening when searching for particular diamond types (IIa) but for that purpose a simple SWUV transparency tester is much cheaper and handy.

That said, FTIR and RAMAN are complementary in the modern gemological lab…… :wink:

Alberto & Mikko

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 Post subject: Re: Possibility of a new FTIR microscope for diamonds
PostPosted: Mon Jan 14, 2013 2:25 pm 
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Hi Alberto,

Stephan will I hope jump in and offer his own contributions. He seems to think that he can make the machine differentiate between synth and natural diamonds as well as do the type ID. He says he is also working on making it possible to colour grade diamonds I'm not sure of how he is going to achieve all this But he is trying / hoping to build an affordable unit. he was also full of praise for what you and Mikko have developed.

We spoke for only a half hour or so and we didn't get into technical details but I hope he will jump on this thread and we can pick his brain some more.


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 Post subject: Re: Possibility of a new FTIR microscope for diamonds
PostPosted: Mon Jan 14, 2013 2:47 pm 
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Thank you Frank,

i really can't wait to talk/read Stephan!!!!

ciao
albé

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